I also get an empty page with Odyssey, doesn't seem to be loading anymore in that situation (no CPU usage, no network activity). Tried couple of times...
Just tried again on the X5000 and it works fine. However, when I try it on WinUAE it just shows a white screen. Hmmm ...
Edit: Apparently, the website requires javascript (I had it turned off) -- so it DOES work on 4.1 Classic on WinUAE (although very slowly, as I said before).